Flashlight beams are probably not visually enhanced! You will notice, when we see the light coming from the flashlights, it's almost always bright white. When we see the spot on objects, it's now yellowish. Incan light emit a lot of infrared light from it's window/lens and cameras are usually sensitive to infrared. But when we see object, they absorb the infrared and don't reflect them, like they can reflect some colors, so only yellow stay. A good test you can do is with a digicam and a remote control. Point the IR diode to the camera, and look in the camera screen, then push a button. You will see the diode illuminate while it stays completely dark when you look directly at it!
What I explained was true with what I've seen recently in the movie "Shooter". The guy had a SureFire G2, when we saw directly the flashlight, pure white light was coming out of it. But when we saw the hotspot, it was yellowish. The funny part is that I think it was a nice real world beam shot example of the G2!
I now want the G2L since a few folks here said the beam was about the same!